Minnesota Vikings running back Adrian Peterson received treatment Thursday for his groin and foot injuries after going through a rare Wednesday practice.
Peterson didn't practice Thursday, but coach Leslie Frazier was hopeful Peterson would be able to play Sunday after the reigning NFL MVP missed his first game of the season last Sunday with a sprained foot.
"Should be fine tomorrow. We'll get him some work tomorrow. We just thought it would be wise to get him some time today inside with our training staff and just work through some of the kinks from yesterday's practice," Frazier said. "Then hopefully we'll get him back out here tomorrow.
"No real setbacks. We just want to be smart about getting him ready for Sunday. We thought it would be wise to take this approach."
Frazier said Peterson's groin is still "a little sore" and probably will remain that way until the end of the season.
In addition to getting treatment for his injuries, Peterson did some "non-football" workouts, according to Frazier.
Tight end John Carlson, who also was inactive for Sunday's game but practiced on Wednesday, had a setback in his comeback from a concussion on Dec. 8.
"We just held him out today as well, thought it would be the best thing. Wasn't feeling as well, so we'll see," Frazier said of Carlson.
It was the second concussion for Carlson in the last two years since he signed with the Vikings. He also had at least one serious concussion with the Seattle Seahawks.
He may have to restart the post-concussion protocol and pass those phases in order to be able to practice Friday and/or play on Sunday.
The injury list doesn't end there for the Vikings.
CB Xavier Rhodes still hasn't practice since spraining his ankle Dec. 8 against the Baltimore Ravens, but he is making progress.
"Hopefully tomorrow he'll be on the field. We'll obviously need him," Frazier said. "He's gotten better, but not enough to where they cleared him to come out and practice today."
Rhodes may practice on Friday. If he does, he is expected to play Sunday, but his starting status will depend on the amount of work he can handle Friday.
RB Matt Asiata was held out for a second straight day because of an ankle injury. Without Peterson and Toby Gerhart on Sunday, Asiata carried 30 times and scored three touchdowns.
Toby Gerhart, who was limited Thursday by a hamstring injury, is expected to play.
In addition to Gerhart, CB Chris Cook (knee), G Brandon Fusco (knee), and S Harrison Smith (toe) were limited Thursday.
For the Bengals, LB James Harrison (concussion), CB Terence Newman (knee), DE Carlos Dunlap (concussion), DT Devon Still (back) and G Andrew Whitworth (concussion) didn't practice. G Kevin Zeitler (foot) was limited.
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Peterson held out, Carlson has setback
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